JPS56111968A - Information retrieving device - Google Patents

Information retrieving device

Info

Publication number
JPS56111968A
JPS56111968A JP1464080A JP1464080A JPS56111968A JP S56111968 A JPS56111968 A JP S56111968A JP 1464080 A JP1464080 A JP 1464080A JP 1464080 A JP1464080 A JP 1464080A JP S56111968 A JPS56111968 A JP S56111968A
Authority
JP
Japan
Prior art keywords
data
cross
reference table
memory part
stored
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1464080A
Other languages
Japanese (ja)
Inventor
Kazutomo Hamamoto
Takao Okita
Hideyuki Kishihata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP1464080A priority Critical patent/JPS56111968A/en
Publication of JPS56111968A publication Critical patent/JPS56111968A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/30—Information retrieval; Database structures therefor; File system structures therefor of unstructured textual data
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/90—Details of database functions independent of the retrieved data types
    • G06F16/901—Indexing; Data structures therefor; Storage structures
    • G06F16/9017—Indexing; Data structures therefor; Storage structures using directory or table look-up

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Data Mining & Analysis (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Software Systems (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)

Abstract

PURPOSE:To reduce the capacity of an external memory that stores a cross-reference table, by storing only the fixed cross-reference table corresponding to the data having a high retrieving frequency into the ROM and producing the cross-reference table of the data having a low retrieving frequency in accordance with the input data. CONSTITUTION:The fixed cross-reference table 8 corresponding to the data having a high retrieving frequency is stored in the ROM. Thus such data is supplied, it is converted into the numerical data according to the table 8 to the data to be stored in the record memory part 9 of the floppy disk 5. With input of a data having a low retrieving frequency, the additional cross-reference table 10 is produced properly to the data and then converted into the numerical data by the table 10 to be stord in the memory part 9. At the same time, the table 10 is also stored in the cross- reference table memory part 11 of the disk 5. Thus the memory part 11 to store the table 10 has not to store all cross-reference tables produced in this system. As a result, the capacity can be reduced for the floppy disk.
JP1464080A 1980-02-07 1980-02-07 Information retrieving device Pending JPS56111968A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1464080A JPS56111968A (en) 1980-02-07 1980-02-07 Information retrieving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1464080A JPS56111968A (en) 1980-02-07 1980-02-07 Information retrieving device

Publications (1)

Publication Number Publication Date
JPS56111968A true JPS56111968A (en) 1981-09-04

Family

ID=11866790

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1464080A Pending JPS56111968A (en) 1980-02-07 1980-02-07 Information retrieving device

Country Status (1)

Country Link
JP (1) JPS56111968A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58189722A (en) * 1982-04-28 1983-11-05 Canon Inc Character processor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58189722A (en) * 1982-04-28 1983-11-05 Canon Inc Character processor

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